- Fix error in choosing when rrule._bymonth was added    superfluously by dateutil (bymonth *isn't* redundant   if the rule is yearly + bymonth + byweekday like, say,   Labor Day)
- Fix error in choosing when rrule._bymonth was added 
  superfluously by dateutil (bymonth *isn't* redundant
  if the rule is yearly + bymonth + byweekday like, say,
  Labor Day)


git-svn-id: d0dba01034cd03709084dc2e161d1284e188ee71@154 72e31ff3-66e1-0310-9094-9c83e53ae81d

eventable/vobject,svn2github/vobject,adieu/vobject,tBaxter/vobject,Kurmaev/vobject